Home / 80,287.48-120,349.20-52,263.81

Finding the Fourth Proportional to 80,287.48, 120,349.20 and 52,263.81

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Solution

The fourth proportional to 80,287.48, 120,349.20 and 52,263.81 is: 78,342.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,287.48 : 120,349.20 = 52,263.81 : x
  2. Step 2: Convert to fraction form
    80,287.48/120,349.20 = 52,263.81/x
  3. Step 3: Cross multiply
    80,287.48x = 120,349.20 × 52,263.81
  4. Step 4: Simplify right side
    80,287.48x = 6,289,907,722.45
  5. Step 5: Solve for x
    x = 6,289,907,722.45/80,287.48
  6. Step 6: Final answer
    x = 78,342.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.